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Q196664: XCON: MAD Consumes 100% CPU While Recalculating Routing

Article: Q196664
Product(s): Microsoft Exchange
Version(s): WinNT:5.5
Operating System(s): 
Keyword(s): exc55 EXC55SP3Fix
Last Modified: 30-SEP-1999

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft Exchange Server, version 5.5 
-------------------------------------------------------------------------------


SYMPTOMS
========

An Administrator attempts to recalculate routing, but the action never finishes.
The Mad.exe process is seen to be using approximately 100% of the CPU.

CAUSE
=====

A logic error in the code which generates an ELSE leg of the Gateway Routing
Table (GWART) causes the recalculation to loop.

RESOLUTION
==========

To resolve this problem, obtain the latest service pack for Exchange Server
version 5.5. For additional information, please see the following article in the
Microsoft Knowledge Base:

  Q191014 XGEN: How to Obtain the Latest Exchange Server 5.5 Service Pack

The English version of this fix should have the following file attributes or
later:

Component: Message Transfer Agent (MTA)

  File Name      Version
  -------------------------
  Dbserver.sch   5.5.2510.0
  Dcprods.cat    5.5.2510.0
  Ems_rid.dll    5.5.2510.0
  Emsmta.exe     5.5.2510.0
  Info4log.cfg   5.5.2510.0
  Infoblog.cfg   5.5.2510.0
  Infodlog.cfg   5.5.2510.0
  Infollog.cfg   5.5.2510.0
  Infotlog.cfg   5.5.2510.0
  Mtacheck.exe   5.5.2510.0
  Mtamsg.dll     5.5.2510.0
  P2.xv2         5.5.2510.0
  X400om.dll     5.5.2510.0
  X400omv1.dll   5.5.2510.0



STATUS
======

Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 5.5. This problem was first corrected in Exchange Server 5.5 Service
Pack 3.

Additional query words: RID GWART
======================================================================
Keywords          : exc55 EXC55SP3Fix 
Technology        : kbExchangeSearch kbExchange550 kbZNotKeyword2
Version           : WinNT:5.5
Issue type        : kbbug
Solution Type     : kbfix

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